JP3261943B2 - curtain wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain wall forming an outer wall of a building.

[0002]

2. Description of the Related Art A curtain wall constituting an outer wall of a building (including a lighting part) has a structure in which an external force received by a panel forming the wall surface is supported between a floor slab or a reinforcing member (a reinforcing frame system). ) And a structure (panel unit system) in which an external force received by the panel is received by the entire panel unit and transmitted to the floor slab or the skeleton. In any case, the reinforcing frame and the panel unit are connected to the floor slab or the building of the building by the connecting member.

On the other hand, since a high-rise building receives strong wind pressure, it is necessary to provide an outer wall with a wind-resistant structure. In the case of a curtain wall, the material of a reinforcing frame and a panel unit is thick, and the structure itself is rugged. For this reason, the cost of the curtain wall increases, and at the same time, the weight of the curtain wall increases, and it is necessary to make the skeleton and the connecting member that support the curtain wall strong and large, thereby increasing the cost of the entire building.

[0004] However, curtain walls usually do not receive any special loads other than wind pressure. Further, the damage to the curtain wall is often caused by the instantaneous wind pressure acting suddenly on a part of the outer wall surface, rather than the magnitude of the wind pressure received on the entire outer wall surface. Therefore, for this reason, it can be said that it is wasteful to make the material of the panel, the grid or the panel unit thick and to make the structure itself robust.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an outer wall structure which is made of a curtain wall to make the outer wall of a building light and has a high wind pressure resistance even if the curtain wall itself has a normal structure.

[0006]

A wind barrier is arranged at an interval outward from the outer wall surface of the curtain wall. The wind barrier body is held on the outer wall by a support member whose base is fixed to a joint between the curtain wall and the building frame.

The wind pressure of the wind colliding with the outer wall surface is received by the wind barrier body in a ratio of the area occupied by the wind barrier body to the front area of the outer wall, and the wind barrier body receives the wind pressure directly from the curtain wall to the slab or building of the building by the support member. Communicate to the joint. Therefore, the wind pressure received by the wind barrier does not act on the reinforcing frame or the panel unit of the curtain wall.

[0008]

FIG. 2 shows a building in which an outer wall 1 is formed by a curtain wall. A spandrel section 2 and a lighting section 3 are formed for each floor, and the spandrel section 2 and the lighting section 3 are alternately formed on the entire wall surface. Is formed. Then, a wind barrier body 4 is attached near a boundary between the spandrel part 2 and the daylighting part 3, and in this embodiment, the wind barrier bodies 4 are arranged in parallel between upper and lower layers and at intervals of 5 from each other. ing.

The outer wall 1 (FIG. 2) has a reinforcing frame 8 in which a vertical member 6 and a horizontal member 7 are assembled in a lattice, and a connecting member 9 for connecting a floor slab 10 of each level.
The reinforcing frame 8 has a waist panel 11 attached to the outer surface thereof.
And the window panel 12 are fixed. Reference numeral 13 denotes a beam of the building frame.

Each horizontal member 7 is located on the outer surface side of the vertical member 6, and is located at the same position as the surface of the connecting member 9 connecting the vertical member 6 to the floor slab 10 when viewed from the front of the wall surface. The lower surface of the waist panel 11 is placed on the cross member 7, and the upper edge of the window panel 12 contacts. That is, the cross member 7 is located at a horizontal joint between the waist panel 11 and the window panel 12.

In this embodiment, the wind barrier body 4 is
Three long barrier members 14 are arranged in parallel at a distance from each other, and each barrier member 14 is fixed to an outer wall surface by a support member 15. The support member 15 is arranged along the cross member 7 at the intersection of the vertical member 6 and the cross member 7,
The base is fixed to the outer surface of the crosspiece 7.

Reference numeral 16 denotes a support stay for reinforcing the support member 15. The base is fixed to the outer surface of the vertical member 6 at the vertical joint between the left and right waist panels 11 or between the window panels 12 in each layer. Have been. In this way, the wind barrier body 4 is held on the outer wall 1 by the support member 15 whose base is fixed to the joint between the curtain wall and the building frame. In this case, the barrier member 14 (FIG. 3) is a long hollow extruded product of an aluminum alloy, is lightweight, and has an elliptical cross section.

A space 17 having a distance (d3) is formed by the support member 15 between the wind barrier 4 and the outer wall surface. The upper level wind barrier 4 and the lower level wind barrier 4 are arranged at intervals (d2), and the floor slabs 10, 10 are arranged at intervals (d1).

In FIG. 1, only two layers of wind barriers 4 are mounted on the upper part of the building, but they may be mounted on every level. The cross-sectional shape of the barrier member 14 is not limited to an elliptical shape, but may be a U-shaped cross section, a semicircular cross section, or a single wide curved plate as shown in FIG. May be provided.

With the above structure, when the wind blows on the outer wall 1, the wind pressure P that is originally applied to the curtain wall between the floor slabs 10 is (d1-d2) / d1 by the wind barrier body 4 directly. Almost d2 for the curtain wall itself
/ D1. Wind barrier body 4 received (d1 -d2
The wind pressure of) / d1 is transmitted to the building frame (floor slab) through the support member 15 and the connecting member 9 and is reliably received.

In addition, the space 17 is relatively narrow in the wind blowing into the space 17 from the space between the wind barrier body 4 on the upper floor and the wind barrier body 4 on the lower floor. Therefore, it collides with the air in this space to form a turbulent flow, and does not directly collide with the outer surface of the curtain wall. As a result, the remaining wind pressure acts uniformly on the outer surface of the curtain wall, and the wind pressure is considerably reduced in the unit area of the curtain wall as compared with the case where the wind barrier body 4 is not provided.

The degree of the decrease is determined by the size and the interval of the interval dimension (d2) between the upper level wind barrier body 4 and the lower level wind barrier body 4 with respect to the interval dimension (d1) between the floor slabs 10, 10. It varies depending on the dimension (d3) of the distance between the wind barrier body 4 and the outer wall surface with respect to the dimension (d2), and the dimension d1 = d
2 × 3, about 1/6 when the dimension d2 = d3.

By providing the wind barrier body 4 in this manner, the wind pressure resistance which the curtain wall must have can be remarkably reduced, and the members forming the curtain wall can be made lightweight and high-rise ones. Even in this case, it is possible to manufacture a material having sufficient wind pressure resistance using a normal material. The above is one embodiment, and the invention of the present application is not limited to the illustrated specific configuration.

As shown in FIG. 5, the upper and lower layers of the wind barrier body 4 are arranged without any gap, and the barrier members 4 cover the entire outer surface of the curtain wall at uniform intervals. You may do it. The wind barrier body 4 may be arranged with its longitudinal direction set to be vertical.

The structure for supporting the wind barrier body 4 on the skeleton side is not limited to the support member 15, and the wind pressure can be directly transmitted to the floor slab or the skeleton side and a space 17 can be formed between the wind barrier body 4 and the outer wall surface. Is fine. The wind barrier body 4 also has a function of changing the cross-sectional shape and color of the barrier member 14 or changing the number of used barrier members 14 so that the design of the building outer wall can be variously designed.

[0021]

According to the configuration of the first and second aspects,
Even when the expected wind pressure is strong, the curtain wall structure does not need to be so rugged as compared with the conventional case, so that the cost of the curtain wall can be reduced.

[0022]

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part (partially broken).

FIG. 2 is a perspective view showing an appearance of a building.

FIG. 3 is a sectional view of a main part.

FIG. 4 is a schematic view of a main part showing another embodiment.

FIG. 5 is a sectional view of a main part showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer wall 2 Spandrel part 3 Lighting part 4 Wind barrier body 5 Interval between wind barrier bodies 6 Vertical member 7 Horizontal member 8 Reinforcement frame 9 Connection member 10 Floor slab 11 Waist panel 12 Window panel 13 Beam 14 Barrier member 15 Support member 16 Support Stay 17 Space 18 holes

Claims (2)

(57) [Claims] An outer wall formed by a curtain wall, and a wind barrier body arranged at an interval outward from the outer wall,
The wind barrier parallels multiple barrier members made of long material
At a distance from each other to support the wind barrier
Support member fixed to the coupling point where the skeleton of the curtain wall and building, curtain walls which is characterized in that to transmit the wind pressure received by the wind barrier body from binding <br/> coupling point through the support member to the building frame. 2. The curtain wall according to claim 1, wherein the barrier member has a large number of holes .